Note: Ships in 3-4 business days. Delivery time depends on the shipping method chosen at checkout. The Box One Saddle Carbon Post is the first of its kind, combining a proprietary co-molded nylon shell with a carbon fiber seatpost. Super lightweight and designed specifically for BMX racing, it features a reduced profile to prevent snagging on pants and a molded Box logo on top. Impact-resistant construction and a minimum insert indicator make it both durable and easy to set up. Features: Impact-Resistant Minimum Insert Indicator Lightweight Construction Specifications: Material: Post: Carbon Fiber; Saddle: Nylon Process: Post: Table Rolled; Saddle: Co-Molded Dimensions (22.2mm): Seatpost Diameter/Saddle/Length: 165mm x 108mm / 135mm Dimensions (27.2mm): Seatpost Diameter/Saddle/Length: 216mm x 114mm / 135mm Size/Weight: 22.2mm: 132g/4.6oz; 27.2mm: 161g/5.6oz